18 
BULLETIN 39, U. S. DEPARTMENT OF AGRICULTURE. 
reported in Table V agree with those reported by Prof. Shepard in 
this particular. It seems probable that if all the durum wheat grown 
in South Dakota was of this variety the market would demand the 
product each year at a price equal to that paid for bluestem wheat. 
Since the yield of the Kubanka (C. I. No. 1440) is 15.7 per cent 
greater at Brookings and 20.3 per cent greater at Highmore than that 
of the Haynes Bluestem (Minn. Xo. 169) it may readily be seen how 
much that would mean to the State of South Dakota. 
This variety owes its yielding power mainly to its ability to resist 
rust and to respond quickly to favorable climatic conditions. In un- 
Sm*M#sWln 
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Pig. 5. — Selected heads of the Kubanka durum wheat (C. I. No. 1440) used in the wheat- 
breeding nursery at Highmore. S. Dak. 
favorable seasons it suffers more severely from drought than the Red 
Fife (S. Dak. Xo. 67. C. L Xo. 3081). It matures in about 100 days. 
and if sown at the same time ripens a few days earlier than blue- 
stem wheat. It holds its seed well, being superior in that respect to 
any of the varieties of common wheat. This is a decided advantage 
when the acreage on any one farm is large, as some of it is likely to 
become overripe before the harvest is completed. Care should be 
taken to make sure that it is ripe enough to cut before beginning to 
harvest, because the glumes, or chaff, turn yellow before the grain is 
ripe. 
The Kubanka durum wheat was obtained in Russia by Mr. M. A. 
Carleton when he visited that country as an agricultural explorer for 
the United States Department of Agriculture in 1899. He made sev- 
eral importations of this and other varieties of durum wheat. Among 
